package org.javaboy.vhr.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.javaboy.vhr.model.Hr;
import org.javaboy.vhr.model.RespBean;

import org.javaboy.vhr.service.HrService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.*;
import org.springframework.security.config.annotation.ObjectPostProcessor;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.access.intercept.FilterSecurityInterceptor;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.security.web.authentication.logout.LogoutSuccessHandler;

import javax.annotation.Resource;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Resource
    HrService hrService;
    @Resource
    CustomFilterInvocationSecurityMetadataSource customFilterInvocationSecurityMetadataSource;
    @Resource
    CustomUrlDecisionManager customUrlDecisionManager;
    //    加密方法

    @Bean
    PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
//    return NoOpPasswordEncoder.getInstance();
    }
    @Override
    protected  void configure(AuthenticationManagerBuilder auth) throws Exception{
        //
        auth.userDetailsService(hrService);
//        auth.inMemoryAuthentication().withUser("admin").password("123").roles("admin");



    }

    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers("/login");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
//                .anyRequest().authenticated()
                .withObjectPostProcessor(new ObjectPostProcessor<FilterSecurityInterceptor>() {
                    @Override
                    public <O extends FilterSecurityInterceptor> O postProcess(O object) {
                        object.setAccessDecisionManager(customUrlDecisionManager);
                        object.setSecurityMetadataSource(customFilterInvocationSecurityMetadataSource);
                        return object;
                    }
                })
                .and()
                .formLogin()
                .loginProcessingUrl("/doLogin")
                .loginPage("/login")
                .successHandler(new AuthenticationSuccessHandler() {

                    @Override
                    public void onAuthenticationSuccess(HttpServletRequest req, HttpServletResponse resp, Authentication authentication) throws IOException, ServletException {
                        resp.setContentType("application/json;charset=utf-8");
                        PrintWriter out=resp.getWriter();
                        //获取登录用户
                        Hr hr=(Hr)authentication.getPrincipal();
                        hr.setPassword(null);
                        //返回json对象给前端
                        RespBean ok=RespBean.ok("登录成功",hr);

                        String s=new ObjectMapper().writeValueAsString(ok);
                        out.write(s);
                        out.flush();
                        out.close();

                    }
                })
                .failureHandler(new AuthenticationFailureHandler() {
                    @Override
                    public void onAuthenticationFailure(HttpServletRequest req, HttpServletResponse resp, AuthenticationException e) throws IOException, ServletException {
                        resp.setContentType("application/json;charset=utf-8");
                        PrintWriter out=resp.getWriter();
                        RespBean respBean=RespBean.error("登录失败");
                        if(e instanceof LockedException){
                            respBean.setMsg("账户被锁定，请联系管理员");
                        }
                        else if(e instanceof CredentialsExpiredException){
                            respBean.setMsg("密码过期，请联系管理员");

                        }
                        else if(e instanceof AccountExpiredException){
                            respBean.setMsg("账户过期，请联系管理员");
                        }
                        else  if (e instanceof DisabledException){
                            respBean.setMsg("账户被禁用，请联系管理员");
                        }else if (e instanceof BadCredentialsException){
                            respBean.setMsg("用户名或者密码输入错误，请重新输入");
                        }


                        out.write(new ObjectMapper().writeValueAsString(respBean));
                        out.flush();
                        out.close();


                    }
                })
//
                .permitAll()
                .and()
                .logout()
                .logoutSuccessHandler(new LogoutSuccessHandler() {
                    @Override
                    public void onLogoutSuccess(HttpServletRequest req, HttpServletResponse resp, Authentication authentication) throws IOException, ServletException {
                        resp.setContentType("application/json;charset=utf-8");
                        PrintWriter out =resp.getWriter();
                        out.write(new ObjectMapper().writeValueAsString(RespBean.ok("注销成功")));
                        out.flush();
                        out.close();
                    }
                })

                .and()
                .csrf().disable();
    }
}
